Gynecologic Imaging-Reporting and Data System (GI-RADS)

Changed by Yuranga Weerakkody, 6 Nov 2019

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The Gynecologic Imaging Reporting and Data System (GI-RADS) is a reporting system that was created for reporting the findings in adnexal masses based on transvaginal ultrasonography.

Classification

Findings are classified into five categories ¹:

GI-RADS 1
- normal ovaries identified and no adnexal mass seen
GI-RADS 2
- adnexal functional lesions
  - follicles
  - corpus luteum
  - hemorrhagic cysts
GI-RADS 3
- benign neoplastic adnexal lesions
  - endometrioma
  - teratoma
  - simple cyst
  - hydrosalpinx
  - paraovarian cyst
  - peritoneal pseudocyst
  - pedunculated myoma
  - changes suggestive of pelvic inflammatory disease
GI-RADS 4
- any adnexal lesion not included in GI‐RADS 1–3
- in addition, the lesion has one or two findings suggestive of malignancy such as:
  - thick papillary projections
  - thick septations
  - solid areas
  - ascites
  - vascularisation within solid areas
  - papillary projections
  - a central area of a solid tumour visualised on colour or power Doppler
GI-RADS 5
- adnexal masses with three or more findings suggestive of malignancy (as listed above)

Performance

GI-RADS has shown good performance with a sensitivity and specificity of 92% and 97% of diagnosing malignant tumours when compared to a final histological diagnosis ².

Treatment and prognosis

Risk of malignancy ¹:

GI-RADS 1: 0%
GI-RADS 2: <1%
GI-RADS 3: 1-4%
GI-RADS 4: 5-20%
GI-RADS 5: >20%

~~-<li><a title="Corpus luteum" href="/articles/corpus-luteum">corpus luteum</a></li>~~
~~-<li><a title="Hemorrhagic ovarian cyst" href="/articles/haemorrhagic-ovarian-cyst">hemorrhagic cysts</a></li>~~
+<li><a href="/articles/corpus-luteum">corpus luteum</a></li>
+<li><a href="/articles/haemorrhagic-ovarian-cyst">hemorrhagic cysts</a></li>
~~-<li><a title="Endometrioma" href="/articles/endometrioma">endometrioma</a></li>~~
~~-<li><a title="Teratoma" href="/articles/teratoma">teratoma</a></li>~~
~~-<li><a title="Simple ovarian cyst" href="/articles/functional-ovarian-cyst">simple cyst</a></li>~~
~~-<li><a title="Hydrosalpinx" href="/articles/hydrosalpinx">hydrosalpinx</a></li>~~
~~-<li>paraovarian cyst</li>~~
~~-<li>peritoneal pseudocyst</li>~~
+<li><a href="/articles/endometrioma">endometrioma</a></li>
+<li><a href="/articles/teratoma">teratoma</a></li>
+<li><a href="/articles/functional-ovarian-cyst">simple cyst</a></li>
+<li><a href="/articles/hydrosalpinx">hydrosalpinx</a></li>
+<li><a href="/articles/paraovarian-cyst-1">paraovarian cyst</a></li>
+<li><a href="/articles/peritoneal-inclusion-cyst">peritoneal pseudocyst</a></li>
~~-<li>changes suggestive of <a title="Pelvic inflammatory disease" href="/articles/pelvic-inflammatory-disease">pelvic inflammatory disease</a>~~
+<li>changes suggestive of <a href="/articles/pelvic-inflammatory-disease">pelvic inflammatory disease</a>